One would suppose that a Christian believes in Jesus Christ and accepts the gospels as true accounts.
Modern Christians seem to believe none of it, so how can they call themselves Christian?
Neil Richardson, a Presbyter of St Paul's Cathedral, and the writer of an article in the current issue of Gay & Lesbian Humanist, says, “The very concepts of heaven and hell belong to the dark ages of human cruelty and abuse and should not feature in the modern Christian thought world at all. Heaven and hell were the carrot and stick used by the Church to keep the masses in a state of mental subjugation and it was always very wrong to do so.”
Of course this is not so. Jesus himself was concerned with little else and the story of his resurrection makes no sense without the reality of the last judgement followed by heaven and hell.
To sum the religion up, you could just say Christianity is Hell.